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Originally posted by JoeT From 2000 onwards, you can adjust the throttle stop screw. it is a philips head screw locked in by an 8mm nut.

Adjusting this is not as simple as you think. Cause there is a fine line between idle and high idle (tps related).

But anycase, you can adjust is to a point. After making the adjustment, the idle will surge up and down. You must reset the ecu after adjusting so that it can get used to the new position.

The throttle stop screw is located immediately under the place the throttle cable is secured. The airbox has to be removed to make adjustment easier.

Hope this helps.

OK this time I'll actually include some text. How much of an increase can you get before the surging and cold morning high idle antics become really noticable? I'd like to be able to add maybe 200 RPM. Is that realistic? Thanks...

OK this time I'll actually include some text. How much of an increase can you get before the surging and cold morning high idle antics become really noticable? I'd like to be able to add maybe 200 RPM. Is that realistic? Thanks...

nope...the ECU is eventually going to throw a code for idle circuit too high.

The amount of change you can affect is in the range of 100 - 150 rpm. If you try anymore than that, yes it will throuw a CE light for Idle circuit too high. That's why I mentioned that it is touchy, really touchy, but it can be done.

I've been running this setup for over 8 months, no problems. Yes the ECU does pull it back but not as much as you think.

Hope this helps. Been there, done that, still doing it, haven't touched it, works great, originally did it when experimenting with Cams, and just left it in place.

No adverse effects, been through Cobb spicy, Cobb milds, TWE Cams, and now JA HP Cams.

That's the reason the idle was changed. As you know running Cobb Spice results in lumpy idle, we changed the throttle stop to prevent the engine from almost shutting down when you released the gas pedal same goes for the TWE cams.

Originally posted by JoeT The amount of change you can affect is in the range of 100 - 150 rpm. If you try anymore than that, yes it will throuw a CE light for Idle circuit too high. That's why I mentioned that it is touchy, really touchy, but it can be done.

I've been running this setup for over 8 months, no problems. Yes the ECU does pull it back but not as much as you think.

Hope this helps. Been there, done that, still doing it, haven't touched it, works great, originally did it when experimenting with Cams, and just left it in place.

No adverse effects, been through Cobb spicy, Cobb milds, TWE Cams, and now JA HP Cams.

That's the reason the idle was changed. As you know running Cobb Spice results in lumpy idle, we changed the throttle stop to prevent the engine from almost shutting down when you released the gas pedal same goes for the TWE cams.